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/**
* \file numeric.c
*
* Time-stamp: "2012-01-29 19:10:40 bkorb"
*
* This file is part of AutoOpts, a companion to AutoGen.
* AutoOpts is free software.
* AutoOpts is Copyright (c) 1992-2012 by Bruce Korb - all rights reserved
*
* AutoOpts is available under any one of two licenses. The license
* in use must be one of these two and the choice is under the control
* of the user of the license.
*
* The GNU Lesser General Public License, version 3 or later
* See the files "COPYING.lgplv3" and "COPYING.gplv3"
*
* The Modified Berkeley Software Distribution License
* See the file "COPYING.mbsd"
*
* These files have the following md5sums:
*
* 43b91e8ca915626ed3818ffb1b71248b pkg/libopts/COPYING.gplv3
* 06a1a2e4760c90ea5e1dad8dfaac4d39 pkg/libopts/COPYING.lgplv3
* 66a5cedaf62c4b2637025f049f9b826f pkg/libopts/COPYING.mbsd
*/
/*=export_func optionShowRange
* private:
*
* what:
* arg: + tOptions* + pOpts + program options descriptor +
* arg: + tOptDesc* + pOptDesc + the descriptor for this arg +
* arg: + void * + rng_table + the value range tables +
* arg: + int + rng_count + the number of entries +
*
* doc:
* Show information about a numeric option with range constraints.
=*/
void
optionShowRange(tOptions * pOpts, tOptDesc * pOD, void * rng_table, int rng_ct)
{
const struct {long const rmin, rmax;} * rng = rng_table;
char const * pz_indent = BULLET_STR;
/*
* The range is shown only for full usage requests and an error
* in this particular option.
*/
if (pOpts != OPTPROC_EMIT_USAGE) {
if (pOpts <= OPTPROC_EMIT_LIMIT)
return;
pz_indent = ONE_TAB_STR;
fprintf(option_usage_fp, zRangeErr, pOpts->pzProgName,
pOD->pz_Name, pOD->optArg.argString);
pz_indent = "";
}
if (pOD->fOptState & OPTST_SCALED_NUM)
fprintf(option_usage_fp, zRangeScaled, pz_indent);
fprintf(option_usage_fp, (rng_ct > 1) ? zRangeLie : zRangeOnly, pz_indent);
pz_indent = (pOpts != OPTPROC_EMIT_USAGE) ? ONE_TAB_STR : DEEP_INDENT_STR;
for (;;) {
if (rng->rmax == LONG_MIN)
fprintf(option_usage_fp, zRangeExact, pz_indent, rng->rmin);
else if (rng->rmin == LONG_MIN)
fprintf(option_usage_fp, zRangeUpto, pz_indent, rng->rmax);
else if (rng->rmax == LONG_MAX)
fprintf(option_usage_fp, zRangeAbove, pz_indent, rng->rmin);
else
fprintf(option_usage_fp, zRange, pz_indent, rng->rmin,
rng->rmax);
if (--rng_ct <= 0) {
fputc(NL, option_usage_fp);
break;
}
fputs(zRangeOr, option_usage_fp);
rng++;
}
if (pOpts > OPTPROC_EMIT_LIMIT)
pOpts->pUsageProc(pOpts, EXIT_FAILURE);
}
/*=export_func optionNumericVal
* private:
*
* what: process an option with a numeric value.
* arg: + tOptions* + pOpts + program options descriptor +
* arg: + tOptDesc* + pOptDesc + the descriptor for this arg +
*
* doc:
* Decipher a numeric value.
=*/
void
optionNumericVal(tOptions* pOpts, tOptDesc* pOD )
{
char* pz;
long val;
/*
* Numeric options may have a range associated with it.
* If it does, the usage procedure requests that it be
* emitted by passing a NULL pOD pointer. Also bail out
* if there is no option argument or if we are being reset.
*/
if ( (pOD == NULL)
|| (pOD->optArg.argString == NULL)
|| ((pOD->fOptState & OPTST_RESET) != 0))
return;
errno = 0;
val = strtol(pOD->optArg.argString, &pz, 0);
if ((pz == pOD->optArg.argString) || (errno != 0))
goto bad_number;
if ((pOD->fOptState & OPTST_SCALED_NUM) != 0)
switch (*(pz++)) {
case NUL: pz--; break;
case 't': val *= 1000;
case 'g': val *= 1000;
case 'm': val *= 1000;
case 'k': val *= 1000; break;
case 'T': val *= 1024;
case 'G': val *= 1024;
case 'M': val *= 1024;
case 'K': val *= 1024; break;
default: goto bad_number;
}
if (*pz != NUL)
goto bad_number;
if (pOD->fOptState & OPTST_ALLOC_ARG) {
AGFREE(pOD->optArg.argString);
pOD->fOptState &= ~OPTST_ALLOC_ARG;
}
pOD->optArg.argInt = val;
return;
bad_number:
fprintf( stderr, zNotNumber, pOpts->pzProgName, pOD->optArg.argString );
if ((pOpts->fOptSet & OPTPROC_ERRSTOP) != 0)
(*(pOpts->pUsageProc))(pOpts, EXIT_FAILURE);
errno = EINVAL;
pOD->optArg.argInt = ~0;
}
/*
* Local Variables:
* mode: C
* c-file-style: "stroustrup"
* indent-tabs-mode: nil
* End:
* end of autoopts/numeric.c */
|
